persistent stubbornly unyielding
legal assistant a person with specialized training who assists lawyers
fire-resistant difficult to burn
water-resistant hindering the penetration of water
waiter's assistant a restaurant attendant who sets tables and assists waiters and clears away dirty dishes
library science the study of the principles and practices of library administration
shop assistant a salesperson in a store
library routine a debugged routine that is maintained in a program library
library paste an adhesive made from water and flour or starch
secretarial assistant an assistant who handles correspondence and clerical work for a boss or an organization
dental assistant an assistant to a dentist
actor's assistant a wardrobe assistant for an actor
resistant disposed to or engaged in defiance of established authority
precedent an example that is used to justify similar occurrences
pre-existent existing previously or before something
least resistance the least effortful way to do something
preexistent existing previously or before something
crease-resistant of fabric that does not wrinkle easily
medical assistant a person trained to assist medical professionals
persistence continuing or repeating behavior